Ford Mustang Forum - View Single Post - Air fuel ratio bouncing after header install
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post #1 of (permalink) Old 02-16-2016 Thread Starter
Clean14
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Joined: Feb 2015
Location: Baytown
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Air fuel ratio bouncing after header install

Ever since I had these JBA Headers and off road X pipe installed on a 2014 Mustang GT 5.0, my air fuel ratio has been swinging from 12-16. Rear O2's have been deleted, new MAF sensor, and everything else WE knew to look for. Here is a link to the video showing how bad it swings... Please help!

https://youtu.be/p3PS9f_KIgI

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